Find the range of the function ​ Enter your answer in interval notation.

The function will have a horizontal asymptote at y  =  (5x^2 / x^2)   =   5

The graph  here  shows  that  the  global minimum occurs at   (-2,3)  :

https://www.desmos.com/calculator/kztvawwhml

So.....the range is  [ 3, 5 )